Scrubbing-machine



L. JAHUSZ.

SCRUBBING MACHINE.

APPLICATION FILED ocT. 6. 1919.

Patented Oct." 11,V 1921.

L. LARUKSZ..

SCRUBBING MACHINE. APPLLCATLON' FILED oche. 1919.

Patented Oct. 11, 1921.

2 SHEETS-SHEET 2.

UNET@ SCRUBBNGJEACEENE.

applicati@ ined @creeer e, 1ere.

T0 all curio/in t may concern.'

Be it lrnown that l, Laon Janusz, a citizen of the TUnited States, residing at Chicago, in the county otA Cook and State of Illinois, have invented new and usefulv improvements in Scrubbingluiachines, of which the following is a spccillcation. Y

rlhis invention has relation to :tloor cleaning` machinery, and refers particularly to a portable 'handoperated floor scrubbing machine. v

The vgeneral object of. my invention is the provision of a simple and inexpensive structure ci the kind referred to. More particularly l aim to provide a combination, in such machine, of a scrubbing element with a squeegee device. Afi-r't'urther object is to provide a reservoir within the machine and capable'olf holding a cleaningfluid, and oic means for gradually releasing the said tluid :for scrubbing` purposes. Another object is to provide means 'for drawing the cleaning` fluid back into the machine at the time the squeegee is drawn over the' floor in order to inish the cleaning' operation. Finally l aim to provide various novel and advantageous features which will be hereinatter fully pointed out and illustrated in the appended drawings, of which: l

Figure l is a side-elevation in section of a machine embodying` the invention,

Figx is a fragmentary view looking down uponthe machine of Fig. l,

Fig. 3 illustrates a modified formel machine, and

Fig. l shows a further modificationo the preceding` structure; y

Referring in the first instance to Figs. l

Aand 2, attention is invited to the three main features ot the machine, namely a handle l, a detachable scrubbingbrush 2 and a squeegee element 3. The said handle ispreterably cylindrical in shape and hollow, having a` lower chamber la, which terms a reservoir 'for the cleaning; tluid and which terminates at the bottom ina valve Il. The said valve is held yieldingly closed by a spring 5, and it is manually operable through the medium ot a lever 6 and a pull-rod 7. it is readily seen thatthe operator is able to regulate the teeding of cleaning` fluid to the brush, as required7 by pulling` the rod 7, and that the spring 5 will re-seat thesaid valvcthe moment the pull-rod is released.

Through the chamber l extends a tube 8, which operatively connectsthe upper hanl initial.

the handle, and terminating` in a hand-pull 17. ln the partition between the upper and lower chambers is placed a spring-held and downwardly opening valve 18.

fitter the scrubbing operation is completod the machine is turned until the squeegee rests upon the iloor, and the machine is then drawn toward the operator in orderto remove the fluid. Fig'. 2, that thesqueegee and its support are formed into an obtuse angle, and this is done in order to direct the fluid to the squeegee outlet 13, which latter terminatesdiredtly inside the apex of the said angle; `Duringa the said movement oi the squeegee over the iioor the operator commences to pull on the draw-pull i7, thereby creating l a suction through the tube 8 and thepas'sages 9,10, ll and l? which suction in turn canses'the valve l2 to open and permits the accumulating liuid at the apex to rise into the upper chamber lb, Having completed the suction stroke,

New it is observed, see*` the operator reverses the piston Vmovement 'p by pushing on theJ ,hand-pull 17,V and instantly the pressure closes thevalve l2, aided by its spring, while simultaneously the valve 18 is forced open, thereby permittingthe fluid to escape into the reservoir la, the displaced air ot which escapes vent le.

lffhen it is desired to chine thevalve e is opened, and the said valve may be held in open position by bringk inea notch oic the rod into engagement 'may be dipped into licor-cleaning fluid, and

it is then re-filled by drawing the piston through an air-w clean outA the Y slightly, thereby opening` the Y illustrated modified structures designed With'.

a vieu7 of minimizing; valve troubles.

The structure of Fig. 3 comprises a handle 20, provided -with an upper' and alovrer chamber 2Oa and 20h, respectively and 'the said chambers are in permanent communie: tion by means of a passage 20C. ln fact it is not essential that there should be .tivo chambers, and the partition 20d is merely placed in order to confine the fluid, as nearly as possible, Within the lower portion ot the machine, so as to keep ,the said fluid away from the pump. The latter comprises a pi, ton 2l, having a stein 22 and an operating handle 23. ln the piston is seta springlield valve 21a, which opens on the downstrolre of the piston. The machine handle terminates at the bottom in a h ead Q-l having` a passage 2a, which is controlled by a `valve 25, and the said valve is held normally closed b f a s brine' 26 and it is manuallv onfr) o i.

erable through, the mediuniol pull-rod 2T pose offeeding fluid to thescrubbiug brush' it is only. necessary to raise the f 5er-piece alve and also uncovering the vent 20's'. in additional movement of the stem 27h' closes the f vent Vand further opens the said valve, and

' Athe valve-chamber 24U.

this is the proper adjustment for cleaningV 'out the machine, as has hereinbefore been described.V

Adjacent to the passage 24a is a second passage 25th, .vhichopens into a valve chamber`2flc,V and terminates ink anV orifice 24dV yclmmber 35a, ol' the head In the manner hereinbefore desome particle should lodge on the valve seat. But it' a leakage does occur, it is required only to examine the valve 'from the outside and to push the ball back a trifle, and the obstruction is readily removed. By removing the screw-cap 32 the balland spring can be taken out and the Whole valve-structure cleaned, Without disturbing the rest of the machine.

ln the device illustrated in Fig. Ll the valve 3V, has beenenlargred, so as to form a sediment reservoir, which is closed by a plate 86, and the latter in turn pivotally supports a spring-held'v valve V3'?. The said valve is shown cupshaped, it may be made ot rubber or other soft resilient material, andit 'fits over a crowned valve-seat 35D. A leakage at the said valve is quickly cured from the outside, and the entire valve is readily removed with the plat-e 36 for more extensive cleaning. ln the chamber 35, and above thesaid valve, is placed aline Wire-screen 8S, Which prevents Lsolids from rising into the handle l() through passage 85C and a tube 39, and the said screenmay be removed at any timev When the plate 36 is detached. Theropposite end of the passage 35 is normally closed by a spring-held and manually operated valve ll. i

Upon examination it is observed that the machine handles of the structures illus'- trated iii Figs. il and l are pivotally connected vvith the scrubbing; heads. In Fig. 3, on the other hand, the parts are shown rigidly combined. ll/ly'aini is to provide structures of either type tesuit trades and operating conditions. l may also effect further modifications in the various component elements of my invention, as demanded by operating conditions', Without departing from the geneialprineiples of the invention, as set forth in thetolloiving claims. 1 v

l claim: V

l. A hollow fluid holding handle, a scrubbing head pivote'd on one end of said handle, a fleribleconduit operatively connecting the interior of said handle and head manually operated ineansiior permitting fluid to drain out of thehandle, and means operated by a hand grip projecting` from the opposite end off the handle for returning the fluidv through said flexible conduit tothe handle.

2. il hollow stein/having a loiver fluid chamber and an upper pump chamber, a s ribbing head at one end ont the stem,'said stem having` ari-outlet and ain inlet passage to the said fluid chamber, a device having a handle centrally placed on the stem for' opening the said outlet, a spring-held inlet valve closing the said inlet passage, and a manually operated pist-on slidable in theAv upper 4clifnnber for returning the fluid through the said inlet valve and passage. Y 1 Y 3. ln ascrubbing` machine, a handle having a fluid-reservoir, a scrubbing brush, a squeegee, manually operated devices for feeding Huid to the said brush, a pump in the said handle, and a Valve operating on the suction stroke of the said pump to open a passage for the fluid to return to the said reservoir.

ln a floor scrubbing` machine, a tubular fluid holding stem, a head mounted on one end of said stein, a brush detachably liXed on said head, manually controlled means for feeding fluid from the stem to said brush, a l/shaped squeegee on the head, said head having a passage the inlet of which is positioned Within the apex of said squeegee and which leads into said stem, a spring held Valve closing said inlet, a device Within the stem for returning fluid from the floor to the stem, and a grip rod pro' jecting through the other end of the stem for operating` said device.

5. In a floor scrubbing machine, a Huid holding stern, a head on one end of said stein, a brush detachably mounted on said head, a Squeegee onthe head, the operating faces of said brush and squeegee forming an obtuse angle in order that one of Said members may clear the floor While the other member is in operation, means for feeding fluid from said stem to said brush, and means for returning said fluid from the floor to the stem.

LEON JARUSZ. 

